Home / 19,985.28-29,971.91-16,466.56

Finding the Fourth Proportional to 19,985.28, 29,971.91 and 16,466.56

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Solution

The fourth proportional to 19,985.28, 29,971.91 and 16,466.56 is: 24,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.28 : 29,971.91 = 16,466.56 : x
  2. Step 2: Convert to fraction form
    19,985.28/29,971.91 = 16,466.56/x
  3. Step 3: Cross multiply
    19,985.28x = 29,971.91 × 16,466.56
  4. Step 4: Simplify right side
    19,985.28x = 493,534,209.46
  5. Step 5: Solve for x
    x = 493,534,209.46/19,985.28
  6. Step 6: Final answer
    x = 24,694.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.